Serrodyne optical frequency translation with high sideband suppression

Johnson, L. M.; Cox, C.H.

doi:10.1109/50.3974

Cited by 106 publications

(59 citation statements)

References 7 publications

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“…After a variable waiting time that exceeds the 11 ms excited state lifetime, we probe the absorption profile by linearly chirped the frequency of the laser light over 500 MHz across the generated hole. The 1 ms-long scans are implemented using a phase modulator driven by a serrodyne signal [16]. Depending on the experimental conditions, we observe persistent spectral holes with line widths as narrow as 15 MHz, including the effect of power broadening.…”

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confidence: 99%

Efficient and long-lived Zeeman-sublevel atomic population storage in an erbium-doped glass fiber

et al. 2015

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Long-lived population storage in optically pumped levels of rare-earth ions doped into solids, referred to as persistent spectral hole burning, is of significant fundamental and technological interest. However, the demonstration of deep and persistent holes in rare-earth ion doped amorphous hosts, e.g. glasses, has remained an open challenge since many decades -a fact that motivates our work towards a better understanding of the interaction between impurities and vibrational modes in glasses.Here we report the first observation and detailed characterization of such holes in an erbium-doped silica glass fiber cooled to below 1 K. We demonstrate population storage in electronic Zeemansublevels of the erbium ground state with lifetimes up to 30 seconds and 80% spin polarization. In addition to its fundamental aspect, our investigation reveals a potential technological application of rare-earth ion doped amorphous materials, including at telecommunication wavelength.

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confidence: 99%

Efficient and long-lived Zeeman-sublevel atomic population storage in an erbium-doped glass fiber

et al. 2015

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“…One important problem with the sawtooth phase modulation is that the fall-time of the phase T F can not be infinitely small (see figure 2), and that is due to the bandwidth limitation of the driver (function generator) and the modulator. In that case, the carrier and other harmonic sidebands are not totally suppressed [6]. As a result, the photocurrent signal from photodetector also has several unsuppressed sidebands with a spacing of nf st .…”

Section: Serrodyne Modulationmentioning

confidence: 96%

“…Serrodyne modulation can be used to generate optical frequency shifts and has been reported previously [6]. An optical signal A 0 e i2πf0t (A 0 is the amplitude of the electric field) is phase modulated and the output can be expressed as A 0 e i(2πf0t+φ(t)) .…”

Section: Serrodyne Modulationmentioning

confidence: 99%

“…However, little work has been done on silicon substrate. One important reason is that the unstressed monocrystalline silicon shows neither a strong electro-optic effect nor a strong piezoelectric effect, and those effects are commonly used mechanisms for phase modulation in the OFS in other materials [6]. Actually, many different types of phase modulations have been reported for silicon photonics in recent years, such as the thermo-optic modulation [7], carrier injection and depletion [8], and the surface acoustic wave (SAW) modulation [9].…”

Section: Introductionmentioning

confidence: 99%

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Optical frequency shifter on SOI using thermo-optic serrodyne modulation

Meersman

Baets

2010

7th IEEE International Conference on Group IV Photonics

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“…An interesting variation on electro-optical modulation is the serrodyne technique whereby a frequency shift is produced by driving a phase modulator (PM) with a sawtooth voltage [8]. Since frequency is the time derivative of phase, the slope of the linear phase variation gives the frequency offset.…”

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confidence: 99%

Creation of arbitrary time-sequenced line spectra with an electro-optic phase modulator

Rogers

Carini

Pechkis

et al. 2011

Review of Scientific Instruments

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We use a waveguide-based electro-optic phase modulator, driven by a nanosecond-timescale arbitrary waveform generator, to produce an optical spectrum with an arbitrary pattern of sidebands. A programmed sequence of linear voltage ramps, with various slopes, is applied to the modulator. The resulting phase ramps give rise to sidebands whose frequency offsets relative to the carrier are equal to the slopes of the corresponding linear phase ramps. This extension of the serrodyne technique provides multi-line spectra with sideband spacings in the 100 MHz range.

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Serrodyne optical frequency translation with high sideband suppression

Cited by 106 publications

References 7 publications

Efficient and long-lived Zeeman-sublevel atomic population storage in an erbium-doped glass fiber

Efficient and long-lived Zeeman-sublevel atomic population storage in an erbium-doped glass fiber

Optical frequency shifter on SOI using thermo-optic serrodyne modulation

Creation of arbitrary time-sequenced line spectra with an electro-optic phase modulator

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